Tube feet

Match the animal names listed under Column - I with the locomotor structure given under Column - II and select the correct option from the codes given below . {:("Column-I","Column-II"),((a)"Nereis",(i)"Tube feet"),((b )"Pleurobrachia",(ii)"Foot"),((c)"Asterias",(iii)"Parapodia"),((d)"Pila",(iv)"Comb plates"):}

Consider the following characters: (a) Aboral surface bears anus and madreporite. (b) Ambulacral grooves are absent. (c) Respiration by dermal branchiae and tube feet.(d) Arms are branched.(e) Pedicellariae are present Which of the following options gives the correct description of Asterias?

The top surface of a rectangular table has an area of 100 square feet and a width of 5 feet. What is the length, in feet, of the surface?

The length of a rectangular room is 8 feet greater than its width. The total area of the room is 240 square feet. {:("Quantity A","Quantity B"),("The width of the room in feet",12):}

Webbed feet found in frogs help in swimming.

What is the area, in square feet, of the figure below?

A sector of a circle has an arc length of 2.4 feet and an area of 14.3 square feet. How many degrees are in the central angle?

If a rectangular swimming pool has a volume of 16,500 cubic feet, a uniform depth of 10 feet, and a length of 75 feet, what is the width of the pool, in feet?

Water is being poured into a tank at the rate of approximately 4 cubic feet per hour. If the tank is 6 feet long, 4 feet wide, and 8 feet deep, how many hours will it take to fill up the tank ?